What does cyathiform mean?
Cyathiform is a botanical adjective meaning shaped like a cup or goblet. It is used especially when describing a corolla, the arrangement of petals that forms the conspicuous part of a flower. A cyathiform corolla is broad and open, with its sides rising from a relatively narrow base to form a cup-like outline. The word can also be used more generally for an object or structure whose shape resembles a drinking vessel, although botanical usage is its established principal application. Because the term is precise and taxonomic, it appears mainly in botanical descriptions, identification keys, and scientific discussion rather than everyday speech. Recognizing it can help readers visualize an unfamiliar floral structure: the flower's petals collectively create a small, symmetrical cup. Cyathiform derives from a Greek stem associated with a cup and an element meaning shape, making its meaning both transparent and closely tied to the vessel-like form it describes.
adjectiveShaped like a cup or goblet, especially describing a corolla that forms a broad, open cup.
- Shaped like a cup or goblet, especially of a floral corolla.
"The botanist noted the plant's delicate, cyathiform corolla and classified it among the cup-shaped flowers."
"The species has a bright yellow, cyathiform corolla about two centimetres across."
"In botanical descriptions, the term cyathiform distinguishes its cup-shaped corolla from the tubular flowers of related plants."
A cyathiform corolla turns a flower into a tiny open goblet.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does cyathiform come from?
Cyathiform was formed in English from a stem associated with the Greek noun kyathos, meaning a cup or drinking vessel, together with the combining element -form, meaning shape. The same Greek-derived vocabulary appears in English in cyathus, cyathium, and cyathoid, all connected with cup-shaped structures or forms. Its use as a botanical adjective reflects the long-standing practice of describing flower shapes through specialized morphological terms.
How cyathiform is actually used
This is a formal, specialized botanical term. It is most often applied to a corolla and is uncommon in general conversation.